Normative Data and Test-Retest Reliability of the SYNAPSYS Video Head Impulse Test

2014 ◽  
Vol 25 (03) ◽  
pp. 244-252 ◽  
Author(s):  
Owen Murnane ◽  
Heather Mabrey ◽  
Amber Pearson ◽  
Stephanie Byrd ◽  
Faith Akin
Keyword(s):  
Repeated Measures ◽  
Laboratory Tests ◽  
Normative Data ◽  
Vestibular Function ◽  
Head Impulse Test ◽  
Video Head Impulse Test ◽  
Retest Reliability ◽  
Significant Difference ◽  
The Mean ◽  
Test Retest Reliability

Background: The observation or measurement of eye movement can aid in the detection and localization of vestibular pathology due to the relationship between the function of the vestibular sensory receptors in the inner ear and the eye movements produced by the vestibulo-ocular reflex (VOR). The majority of bedside and laboratory tests of vestibular function involve the observation or measurement of horizontal eye movements (i.e., horizontal VOR) produced by stimuli that activate the horizontal semicircular canals (SCCs) and the superior vestibular nerve. The video head impulse test (vHIT) is a new clinical test of dynamic SCC function that uses a high-speed digital video camera to record head and eye movement during and immediately after passive head rotations. The SYNAPSYS Inc. vHIT device measures the “canal deficit” (deviation in gaze) during passive head impulses in the horizontal and diagonal (vertical) planes. There is, however, a paucity of data that has been reported using this device. Purpose: The purpose of this study was to obtain normative data and assess the test-retest reliability of the SYNAPSYS vHIT (version 2.0). Research Design: A prospective repeated measures design was utilized. Study Sample: Thirty young adults with normal hearing, normal caloric test results, and a negative history of vestibular disorder, neurological disease, open or closed head injury, or cervical spine injury participated in the study. Data Collection and Analysis: A single examiner manually rotated each participant’s head in the horizontal and diagonal planes in two directions (left and right in the horizontal plane; downward and upward in each diagonal plane) resulting in the stimulation of each of the six SCCs. Each participant returned for repeat testing to assess test-retest reliability. The effects of ear, session, and semicircular canal (horizontal, anterior, posterior) on the magnitude of canal deficit during the vHIT were assessed using repeated measures analysis of variance. Results: The mean canal deficit of the horizontal canals (8.3%) was significantly lower than the mean canal deficit of the anterior canals (16.5%) and the posterior canals (15.2%); there was no significant difference between the mean canal deficits of the anterior and posterior canals. The main effects of session and ear on canal deficit were not significant, and there were no significant interaction effects. There was no significant difference between the mean canal deficit for session 1 and session 2 for the horizontal, anterior, and posterior canals. The 95th percentiles for canal deficit were 19, 26, and 22% for the horizontal, anterior, and posterior SCCs, respectively. Conclusions: Testing of all six SCCs was completed in most participants in ˜10 min and was well-tolerated. The vHIT has some important advantages relative to more established laboratory tests of horizontal SCC function including the ability to assess the vertical SCCs, lower cost, shorter test time, greater portability, minimal space requirements, and increased patient comfort. Additional data, however, should be obtained from older participants with normal vestibular function and from patients with vestibular disorders. Within-subject comparisons between the results of the vHIT and the caloric and rotary chair tests will be important in determining the role of the vHIT in the vestibular test battery.

Acoustic Stapedial Reflexes in Healthy Neonates: Normative Data and Test-Retest Reliability

2012 ◽  
Vol 23 (01) ◽  
pp. 046-056 ◽  
Author(s):  
Joseph Kei
Keyword(s):  
Normative Data ◽  
Otoacoustic Emission ◽  
Broadband Noise ◽  
Retest Reliability ◽  
Significant Difference ◽  
Transient Evoked Otoacoustic Emission ◽  
Brainstem Response ◽  
Stapedial Reflex ◽  
The Mean ◽  
Test Retest Reliability

Background: The acoustic stapedial reflex (ASR) test provides useful information about the function of the auditory system. While it is frequently used with adults and children in a clinical setting, its use with young infants is limited. Presently, there are few data for neonates and inadequate research into the test-retest reliability of the ASR test. Purpose: This study aimed to establish normative data and evaluate the test-retest reliability of the ASR test in healthy neonates. Research Design: A cross-sectional experimental design was used to establish ASR normative data and assess the test-retest reliability of ASR thresholds obtained from healthy neonates. Study Sample: Sixty-eight full-term neonates with mean chronological age of 2.5 days (SD = 1.8 day), who passed the automated auditory brainstem response, transient evoked otoacoustic emission, and high frequency (1 kHz) tympanometry (HFT) tests. Data Collection and Analysis: One randomly selected ear from each neonate was tested using TEOAE (transient evoked otoacoustic emission), HFT, and ASR tests using a 1 kHz probe tone. ASR thresholds were elicited by presenting pure tones of 0.5, 2, and 4 kHz and broadband noise (BBN) separately to the test ear in an ipsilateral stimulation mode. The ASR procedure was repeated to acquire retest data within the same testing session. Descriptive statistics, χ2, and analysis of variance with repeated measures tests were used to analyze ASR data. Results: All neonates exhibited ASR when stimulated by tonal stimuli or BBN. The mean ASRTs (acoustic stapedial reflex thresholds) for the 0.5, 2, and 4 kHz tones were 81.6 ± 7.9, 71.3 ± 7.9, and 65.4 ± 8.7 dB HL, respectively. The mean ASRT for the BBN was estimated to be smaller than 57.2 dB HL, given the limitation of the equipment. The 95th percentiles of the ASRT were 95, 85, 80, and 75 dB HL for the 0.5, 2, and 4 kHz and BBN, respectively. The test-retest reliability of the ASR test for all stimuli was high, with no significant difference in mean ASRTs across the test and retest conditions. Test-retest differences were within 10 dB for more than 91% of ASRT data across all stimuli. There was a slight trend of ASRTs being more repeatable in the medium ASRT range than in the higher or lower range. Conclusions: This study demonstrated that ASRTs obtained from healthy neonates were highly repeatable across test and retest sessions. Given the availability of normative data and the high test-retest reliability, the ASR test will be useful as a diagnostic tool in a battery of tests to evaluate the auditory function of neonates.

scholarly journals Test–Retest Reliability of Video Head Impulse Test in Healthy Individuals and Individuals with Dizziness

2019 ◽  
Vol 30 (09) ◽  
pp. 744-752 ◽  
Author(s):  
Niraj Kumar Singh ◽  
Rajeshwari Govindaswamy ◽  
Nirmala Jagadish
Keyword(s):  
Repeated Measures ◽  
Intraclass Correlation ◽  
Head Impulse Test ◽  
Video Head Impulse Test ◽  
Healthy Individuals ◽  
Large Variability ◽  
Retest Reliability ◽  
Head Impulse ◽  
Vestibular Pathology ◽  
Test Retest Reliability

AbstractVideo head impulse test (vHIT) is widely accepted as a test for the assessment of functional integrity of semicircular canals (SCCs). It allows for the evaluation of the functioning of all six SCCs independent of each other. It works on the principle of the vestibulo-ocular reflex (VOR). In individuals with vestibular pathologies, the VOR is impaired, and hence, the use of vHIT may provide vital information about the functional status of SCCs and the VOR pathway originating from them.In the recent past, studies reported excellent test–retest reliability of vHIT in healthy individuals. However, these studies used analysis of variance or the nonparametric counterpart Wilcoxon signed-rank test, which are insufficient statistical methods for conclusions about test–retest reliability. Further, because vHIT assesses VOR function in individuals with vestibular pathologies, it is important to assess test–retest reliability in the pathological group as well. Therefore, the present study aimed to evaluate test–retest reliability of vHIT in healthy individuals and individuals with vestibular pathology.Repeated measures.Twenty healthy individuals with no history of vestibular pathology and 20 individuals with known vestibular pathology were included.Each participant underwent vHIT testing for all three SCCs of both sides on four different occasions. VOR gain and the presence of pathological saccades were noted and analyzed for each recording.Intraclass correlation coefficient (ICC) revealed excellent test–retest reliability for VOR gain in both groups (ICC ≥ 0.76). Kappa coefficient analysis for the presence of refixation saccades demonstrated moderate to excellent agreement between test sessions (K ≥ 0.63) for the lateral canal. For the anterior and posterior SCC, there was large variability between sessions for refixation saccades.This study provides evidence about test–retest reliability of VOR gain and refixation saccades assessed using vHIT in healthy individuals and individuals with vestibulopathies. These findings suggest that both measures are highly reliable and replicable across test sessions, except refixation saccades in vertical canals which varied between sessions in some individuals.

scholarly journals Normative Data and Reliability of the Moving Shapes Paradigm

2020 ◽  
Author(s):  
Zahra Shahrivar ◽  
Mehdi Tehrani-Doost ◽  
Anahita Khorrami Banaraki ◽  
Azar Mohammadzadeh
Keyword(s):  
Normative Data ◽  
Community Sample ◽  
Cluster Sampling ◽  
Rater Agreement ◽  
Retest Reliability ◽  
Random Cluster ◽  
School Aged Children ◽  
Significant Difference ◽  
Reliable Instrument ◽  
Test Retest Reliability

Objective: Moving Shapes paradigm is a test that evaluates intentionality as a theory of mind (ToM) component. This study aimed to assess the normative data and reliability of this test in a community sample of 9-11-year-old children. Method: A total of 398 children aged between 9 and 11 years were recruited from mainstream elementary schools through a random cluster sampling. All participants were evaluated using the Moving Shapes paradigm. To evaluate test-retest reliability, the test was administered again after 2-4 weeks. Results: The intentionality mean score was 29.70 (+5.88) out of 60. There was no significant difference between girls and boys in test scores. Age was not significantly related to the paradigm variables scores. Ten percent of the participants achieved the scores below 22, and 10% above 37. Cronbach’s Alfa was 0.40 for the intentionality score. The test-retest reliability was fair to good (0.43 - 0.79) for different groups of animations. The inter-rater agreement was 80%. Conclusion: The study found that the Moving shapes paradigm is a reliable instrument to evaluate intentionality in normal school-aged children.

Children's Prehension: Normative Data for the Children's Box and Block Test

1976 ◽  
Vol 42 (2) ◽  
pp. 568-570
Author(s):  
Dorothy S. Young
Keyword(s):  
Performance Index ◽  
Normative Data ◽  
Manual Dexterity ◽  
School Age Children ◽  
Dominant Hand ◽  
School Age ◽  
Retest Reliability ◽  
The Mean ◽  
Block Test ◽  
Test Retest Reliability

To establish norms for gross manual dexterity of school-age children, 113 Ss, aged 7, 8, 9 yr., were given the Children's Box and Block Test, which yields a performance index for each hand. (a) For 7-yr.-olds, the mean scores for dominant hand were 61.8 for boys, 62.7 for girls; and 57.7 for boys' and 59.4 for girls' non-dominant hands. (b) The mean scores for dominant hand of 8-yr.-old boys and girls were 66.0 and 67.2 respectively; for the non-dominant hand 61.9 and 63.3. For dominant and non-dominant hands of 9-yr.-old boys, scores were 71.0 and 62.3; for the girls 68.0 and 64.6. Test-retest reliability varied from .78 to .91.

Test-Retest Reliability of a Psychometric Instrument Designed to Measure Physical Therapy Students’ Burnout

1995 ◽  
Vol 81 (2) ◽  
pp. 667-672 ◽  
Author(s):  
Joseph A. Balogun ◽  
Sandra Helgemoe ◽  
Elizabeth Pellegrini ◽  
Teresa Hoeberlein
Keyword(s):  
Physical Therapy ◽  
Emotional Exhaustion ◽  
Repeated Measures ◽  
Maslach Burnout Inventory ◽  
Personal Accomplishment ◽  
Physical Therapy Students ◽  
Retest Reliability ◽  
Significant Difference ◽  
Test Retest Reliability ◽  
Senior Students

The purpose of this study was to assess the reproducibility of scores on an instrument designed to measure physical therapy students’ burnout. Physical therapy students (28 juniors and 28 seniors) completed an adapted educators version of the Maslach Burnout Inventory on two occasions within a week interval. At each testing session, a separate score was obtained for each student for the three (emotional exhaustion, depersonalization, and personal accomplishment) subscales of the instrument. These scores, analyzed with a two-factor repeated-measures analysis of variance, indicated a significant difference in the personal accomplishment score between the junior and senior students during the two time frames. Scheffé post hoc tests showed that the junior students reported higher personal accomplishment affect at both testing sessions than the senior students. Both junior and senior students reported higher personal accomplishment at retest than at baseline testing. A test-retest reliability coefficient of .850 was obtained for the Depersonalization subscale; .907 and .715 were obtained for the Emotional Exhaustion and Personal Accomplishment subscales, respectively.

Video head impulse test saccades and loss of cervical vestibular evoked myogenic potentials are late vestibular footprints of cochlear implantation

2020 ◽  
pp. 1-7
Author(s):  
Niels West ◽  
Mads Klokker ◽  
Per Cayé-Thomasen
Keyword(s):  
Cochlear Implantation ◽  
Vestibular Function ◽  
Vestibular Evoked Myogenic Potentials ◽  
Head Impulse Test ◽  
Video Head Impulse Test ◽  
Before And After ◽  
The Mean ◽  
Vestibular Assessment

BACKGROUND: Cochlear implantation may be complicated by concurrent injury to the vestibular apparatus, potentially resulting in disabling vertigo and balance problems. Information on vestibular function before implantation as measured by the video head impulse test (VHIT) and cervical vestibular evoked myogenic potentials (cVEMPs) is scarce and literature on long-term effects is non-existing. OBJECTIVE: We aimed to evaluate how vestibular function was affected by cochlear implantation (CI), as measured by VHIT and cVEMPs in the late phase after implantation. METHODS: Retrospective repeated measurement study. Patients: Among the 436 patients elected for CI surgery during 2013 to 2018, 45 patients met the inclusion criteria (CI recipients with a vestibular assessment prior to the first CI and a repeated vestibular assessment after the CI operation). Intervention: VHIT and cVEMPs before and after cochlear implantation. Main outcome measures were vestibular function as evaluated by VHIT gain, saccades and cVEMPs. RESULTS: The mean time between first and second vestibular screening was 19 months. The mean VHIT gain on implanted ears was 0.79 before the operation and showed no change at follow-up (p = 0.65). Likewise, the number of abnormal VHIT gain values was equal before and after the operation (p = 0.31). Preoperatively, saccades were present on 12 ears (14% ) compared with 25 ears (29% ) postoperatively (p = 0.013) and were associated with significantly lower VHIT gain values. Preoperatively, positive cVEMPs were found in 20 CI ears (49% ) and 24 contralateral ears (62% ). 10 CI ears lost cVEMP postoperatively compared with 2 ears on the contralateral side (p = 0.0047). CONCLUSIONS: Even though VHIT gain has been reported to be affected in the immediate post-implantation period, the findings in this study show that VHIT gain is normalized in the long-term. However, cochlear implantation is associated with the occurrence of VHIT saccades in the long-term and these are associated with lower VHIT gain values. In addition, cVEMP responses are significantly reduced long-term on implanted ears, which agrees with other studies with shorter follow-up.

scholarly journals The Development of a Paediatric Phoneme Discrimination Test for Arabic Phonemic Contrasts

2021 ◽  
Vol 11 (2) ◽  
pp. 150-166
Author(s):  
Hanin Rayes ◽  
Ghada Al-Malky ◽  
Deborah Vickers
Keyword(s):  
Closed Set ◽  
Retest Reliability ◽  
Response Options ◽  
Phoneme Discrimination ◽  
Significant Difference ◽  
Age Appropriate ◽  
Hearing Children ◽  
Test Retest Reliability ◽  
Development And Validation ◽  
Arabic Speaking

Objective: The aim of this project was to develop the Arabic CAPT (A-CAPT), a Standard Arabic version of the CHEAR auditory perception test (CAPT) that assesses consonant perception ability in children. Method: This closed-set test was evaluated with normal-hearing children aged 5 to 11 years. Development and validation of the speech materials were accomplished in two experimental phases. Twenty-six children participated in phase I, where the test materials were piloted to ensure that the selected words were age appropriate and that the form of Arabic used was familiar to the children. Sixteen children participated in phase II where test–retest reliability, age effects, and critical differences were measured. A computerized implementation was used to present stimuli and collect responses. Children selected one of four response options displayed on a screen for each trial. Results: Two lists of 32 words were developed with two levels of difficulty, easy and hard. Assessment of test–retest reliability for the final version of the lists showed a strong agreement. A within-subject ANOVA showed no significant difference between test and retest sessions. Performance improved with increasing age. Critical difference values were similar to the British English version of the CAPT. Conclusions: The A-CAPT is an appropriate speech perception test for assessing Arabic-speaking children as young as 5 years old. This test can reliably assess consonant perception ability and monitor changes over time or after an intervention.

Vestibular semicircular canal function as detected by video Head Impulse Test (vHIT) is essentially unchanged in people with Parkinson’s disease compared to healthy controls

2021 ◽  
pp. 1-9
Author(s):  
Kim E. Hawkins ◽  
Elodie Chiarovano ◽  
Serene S. Paul ◽  
Ann M Burgess ◽  
Hamish G. MacDougall ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Semicircular Canal ◽  
Neurodegenerative Disorder ◽  
Vestibular Function ◽  
Head Impulse Test ◽  
Healthy Controls ◽  
Video Head Impulse Test ◽  
Head Impulse ◽  
Vestibulo Ocular Reflex

BACKGROUND: Parkinson’s disease (PD) is a common multi-system neurodegenerative disorder with possible vestibular system dysfunction, but prior vestibular function test findings are equivocal. OBJECTIVE: To report and compare vestibulo-ocular reflex (VOR) gain as measured by the video head impulse test (vHIT) in participants with PD, including tremor dominant and postural instability/gait dysfunction phenotypes, with healthy controls (HC). METHODS: Forty participants with PD and 40 age- and gender-matched HC had their vestibular function assessed. Lateral and vertical semicircular canal VOR gains were measured with vHIT. VOR canal gains between PD participants and HC were compared with independent samples t-tests. Two distinct PD phenotypes were compared to HC using Tukey’s ANOVA. The relationship of VOR gain with PD duration, phenotype, severity and age were investigated using logistic regression. RESULTS: There were no significant differences between groups in vHIT VOR gain for lateral or vertical canals. There was no evidence of an effect of PD severity, phenotype or age on VOR gains in the PD group. CONCLUSION: The impulsive angular VOR pathways are not significantly affected by the pathophysiological changes associated with mild to moderate PD.

Validity and reliability of the Turkish version of the Patient Dignity Inventory

2021 ◽  
pp. 1-8
Author(s):  
Yasemin Eskigülek ◽  
Sultan Kav
Keyword(s):  
Palliative Care ◽  
Factor Analysis ◽  
Intraclass Correlation ◽  
Validity And Reliability ◽  
Turkish Version ◽  
Retest Reliability ◽  
Significant Difference ◽  
Test Retest Reliability ◽  
Fit Index ◽  
Turkish Society

Abstract Objective The aim of this study was to investigate the validity and reliability of the Patient Dignity Inventory (PDI) in the Turkish society, which was developed to evaluate dignity-related distress in palliative care patients. Methods One hundred and twenty-seven adults with advanced cancer hospitalized in several clinics of two university hospitals were included in the study. The patients whose Palliative Performance Scale score was at least 40% were recruited to study. The data were collected with a patient demographic form, the Turkish version of Hospital Anxiety and Depression Scale (HADS-TR), and the Turkish version of the PDI (PDI-TR). The PDI-TR was finalized and back-translated after translating into Turkish and obtaining 10 expert opinions. Exploratory and confirmatory factor analysis, internal consistency, concurrent validity, and test–retest reliability analysis were performed. Results The Cronbach's α coefficient of PDI-TR was 0.94. Factor analysis resulted in a five-factor solution, and all items were loaded on factors. Factors were labeled as symptom distress, existential distress, self-confidence, dependency, and supportive care needs and accounted for 68.70% of the overall variance. The model's normed fit index, comparative fit index, and X2/SD were found between acceptable range (0.90, 0.93, and 2.64, respectively). A positive and strong correlation was found between subdimension scores of HADS-TR and the total score of PDI-TR (r = 0.70 for anxiety subdimension; r = 0.73 for depression subdimension). The test–retest reliability was conducted with 32 patients within the sample two weeks after the first application, and no significant difference was found between the two application scores as the result of paired-sample t-test (p > 0.05). An intraclass correlation coefficient of test–retest reliability was r = 0.855. Significance of results PDI-TR was found to be a valid and reliable tool in palliative care patients in Turkish society.

scholarly journals Test–retest reliability of laser evoked pain perception and fMRI BOLD responses

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yanzhi Bi ◽  
Xin Hou ◽  
Jiahui Zhong ◽  
Li Hu
Keyword(s):  
Resting State ◽  
Repeated Measures ◽  
Subjective Experience ◽  
Pain Perception ◽  
Primary Motor Cortex ◽  
Intraclass Correlation ◽  
Retest Reliability ◽  
Repeated Measures Design ◽  
Brain Responses ◽  
Test Retest Reliability

AbstractPain perception is a subjective experience and highly variable across time. Brain responses evoked by nociceptive stimuli are highly associated with pain perception and also showed considerable variability. To date, the test–retest reliability of laser-evoked pain perception and its associated brain responses across sessions remain unclear. Here, an experiment with a within-subject repeated-measures design was performed in 22 healthy volunteers. Radiant-heat laser stimuli were delivered on subjects’ left-hand dorsum in two sessions separated by 1–5 days. We observed that laser-evoked pain perception was significantly declined across sessions, coupled with decreased brain responses in the bilateral primary somatosensory cortex (S1), right primary motor cortex, supplementary motor area, and middle cingulate cortex. Intraclass correlation coefficients between the two sessions showed “fair” to “moderate” test–retest reliability for pain perception and brain responses. Additionally, we observed lower resting-state brain activity in the right S1 and lower resting-state functional connectivity between right S1 and dorsolateral prefrontal cortex in the second session than the first session. Altogether, being possibly influenced by changes of baseline mental state, laser-evoked pain perception and brain responses showed considerable across-session variability. This phenomenon should be considered when designing experiments for laboratory studies and evaluating pain abnormalities in clinical practice.

Sign in / Sign up

Export Citation Format

Share Document